Engine & fuel system
4 documented faults — symptoms, causes and workshop fixes.
Engine jerking
Exhaust gas recirculation (EGR) valve not operating properly.
Overview
- Affects
- All models with 1.9D JTD 8V/16V/2.4D JTD 20V engines.
Symptoms
Hesitation when accelerating at 1800-2000rpm.
Repair steps
- Check operation of thermostat.
- Check engine oil level correct.
- Check for contamination of fuel.
- Check fuel filter.
- Check whole intake system for leaks.
- Check mass air flow (MAF) sensor.
- Check for oil in intake system.
- Check fuel injectors for leaks.
- Check fuel injectors for correct type.
- Ensure EGR system operates correctly.
- Remove EGR valve and fit restrictor plate: 1.9D JTD 16V/2.4D JTD 20V 1.9D JTD 8V.
Parts
| Part | Part number | Qty |
|---|---|---|
| Restrictor plate | 71751468 | 1,9D JTD 16V/2,4D JTD 20V |
| Gasket | 55191883 | 1,9D JTD 16V/2,4D JTD 20V |
| Restrictor plate | 71751469 | 1,9D JTD 8V |
| Gasket | 46773082 | 1,9D JTD 8V |
Data: Motorwise Workshop. Bulletin 1.
Engine misfire
Overview
- Affects
- 1.9D JTDM/JTD 16V: Engine code 937A5.000, engine No.5853303→.2.4D JTD 20V: Engine code 939A3.000, engine No.5753255→.2.4D JTD 20V: Engine code 939A9.000, engine No.5741021→.
- Fault codes
P0201P0202P0203P0204P0205- Parts
- 2 parts
Symptoms
Engine malfunction indicator lamp (MIL) illuminated. Poor engine performance. Smoke from exhaust. Trouble codes stored: P0201, P0202, P0203, P0204, P0205.
Cause
Poor connection on fuel injector multi-plugs due to vibration.
Repair
- Remove top engine cover.
- Fit vibration dampers to fuel injector pipes: 1.9D JTDM/JTD 16V 2.4D JTD 20V.
Parts2 parts
| Part | Part number | Qty |
|---|---|---|
| Vibration damper | 55214403 | 1,9D JTDM/JTD 16V |
| Vibration damper | 55214403 | 2,4D JTD 20V |
Data: Motorwise Workshop. Bulletin 3.
Trouble code stored: P2264
Overview
- Affects
- All models with Diesel engines.
- Fault codes
P2264
Cause
Poor or no connection of wiring harness at fuel/water separator sensor.
Faulty fuel/water separator sensor.
Repair steps
- Check wiring for positive supply at harness multi-plug terminal 3.
- Check fuel/water separator sensor wiring harness continuity.
- Check fuel/water separator sensor harness multi-plug for good contact.
- Renew fuel/water separator sensor.
Data: Motorwise Workshop. Bulletin 11.
Engine malfunction indicator lamp (MIL) illuminated
Overview
- Affects
- All models with Diesel engines.
- Fault codes
P0237P0238P2562P2563
Symptoms
Lack of power. Possible trouble codes stored: P0237, P0238, P2562, P2563. Whistling noise from engine. White smoke coming from exhaust.
Cause
Turbocharger (TC) control pressure sensor faulty.
Internal failure of turbocharger (TC).
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Replace turbocharger (TC) and turbocharger (TC) control pressure sensor.
Data: Motorwise Workshop. Bulletin 12.
Electrical & ignition
4 documented faults — symptoms, causes and workshop fixes.
SRS warning lamp illuminated
Overview
- Affects
- All models with electric seats, VIN →5010048.
Symptoms
Electric front seat not operating.
Cause
Front seat wiring harness damaged.
Repair
- Locate damaged wire by removing seat side trim panel.
- Repair and re-route damaged wiring.
Data: Motorwise Workshop. Bulletin 4.
Door mirror(s) not retracting
Overview
- Affects
- All models with retractable door mirrors.
Cause
Poor electrical contact between harness multi-plug and door mirror retract motor.
Repair
- Remove door mirror glass.
- Ensure harness multi-plug correctly fitted.
Data: Motorwise Workshop. Bulletin 7.
Intermittent self-activation of alarm system siren
Cause
Alarm system in car movement sensors too sensitive.
Repair
- Fit new alarm system in car movement sensors.
Parts3 parts
| Part | Part number | Qty |
|---|---|---|
| Alarm system in car movement primary sensor | 50511682 | 1 |
| Alarm system in car movement secondary sensor | 50511683 | 1 |
| Alarm system in car movement secondary sensor | 50511683 | 2 |
Data: Motorwise Workshop. Bulletin 8.
Automatic window partial opening function not working correctly
Cause
Electric window control module software fault.
Repair
- Replace electric window control module(s) as required.
Parts8 parts
| Part | Part number | Qty |
|---|---|---|
| Electric window control module, left front - without retractable door mirrors (LHD) | 50510510 | 1 |
| Electric window control module, left front - with retractable door mirrors (LHD) | 50510511 | 1 |
| Electric window control module, right front - without retractable door mirrors (LHD) | 50510514 | 1 |
| Electric window control module, right front - with retractable door mirrors (LHD) | 50510515 | 1 |
| Electric window control module, right front - without retractable door mirrors (RHD) | 50510512 | 1 |
| Electric window control module, right front - with retractable door mirrors (RHD) | 50510513 | 1 |
| Electric window control module, left front - without retractable door mirrors (RHD) | 50510516 | 1 |
| Electric window control module, left front - with retractable door mirrors (RHD) | 50510517 | 1 |
Data: Motorwise Workshop. Bulletin 9.
Steering
1 documented fault — symptoms, causes and workshop fixes.
Noise from power steering pump after cold start
Air in power steering fluid.
Overview
- Affects
- All models.
Repair steps
- Drain power steering system.
- Turn steering from lock to lock 4-5 times.
- Flush power steering system out with recommended power steering fluid.
- Renew power steering fluid reservoir (1.9D JTD 16V/3.2 JTS).
- Refill power steering system (Tutela GI/R).
- Start engine. Turn steering from lock to lock 4-5 times to bleed system.
- Top up power steering fluid level.
- Check for leaks.
Parts
| Part | Part number | Qty |
|---|---|---|
| PAS reservoir | 50507184 | 1,9D JTD 16V/3,2 JTS |
| PAS fluid | Tutela GI/R | All engines |
Data: Motorwise Workshop. Bulletin 2.
Air conditioning & heating
2 documented faults — symptoms, causes and workshop fixes.
Engine malfunction indicator lamp (MIL) illuminated
Overview
- Affects
- All models with MT.
- Fault codes
P1206P2004P2013- Remedy
- Software update
Symptoms
Trouble codes stored: P1206, P2004, P2013.
Cause
Engine control module (ECM) software fault.
Intake manifold air control actuator faulty.
Faulty fuel injectors.
Repair steps
- Check operation of intake manifold air control actuator. Replace intake manifold and intake manifold air control actuator with modified version, if necessary.
- Check fuel injectors for correct type. Modified fuel injectors have production number XXXXXXXXXX_01.
- Re-program engine control module (ECM) with upgraded software.
- To carry out an effective repair a software upgrade will be required - refer to manufacturer.
Parts
| Part | Part number | Qty |
|---|---|---|
| Fuel injector | 71793290 | 5 |
| Fuel injector seal | 46518716 | 5 |
| Fuel injector pipe - fuel injector No. 1 | 55212305 | 1 |
| Fuel injector pipe - fuel injector No. 2 | 55211160 | 1 |
| Fuel injector pipe - fuel injector No. 3 | 55204725 | 1 |
| Fuel injector pipe - fuel injector No. 4 | 55204726 | 1 |
| Fuel injector pipe - fuel injector No. 5 | 5521306 | 1 |
| Intake manifold | 55210197 | 1 |
| Intake manifold air control actuator | 55205127 | 1 |
| Throttle body seal kit | 71748278 | 1 |
| High-pressure fuel pipe | 55213194 | 1 |
| Exhaust gas recirculation (EGR) solenoid seal | 55191883 | 1 |
| Exhaust gas recirculation (EGR) solenoid seal | 46773082 | 1 |
| Nut | 55192175 | 11 |
Data: Motorwise Workshop. Bulletin 6.
Erratic AC compressor operation
Symptoms
Air conditioning (AC) inefficient when ambient air temperature is high.
Cause
AC receiver/drier faulty.
Repair
- Fit modified AC receiver/drier.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| AC receiver/drier | 71748263 | 1 |
Data: Motorwise Workshop. Bulletin 10.
Body & trim
1 documented fault — symptoms, causes and workshop fixes.
Noise from rear of vehicle when driving over rough roads
Roof panel support and roof panel crossmember rubbing together.
Overview
- Affects
- All models, VIN →5002376.
Repair steps
- Remove interior side trim from C pillars.
- Lower the rear section of headlining.
- Using a suitable tool, increase clearance in bodywork joint.
- Apply sealant into entire length of bodywork joint.
Parts
| Part | Part number | Qty |
|---|---|---|
| Bodywork sealant | 51721311 | 1 |
Data: Motorwise Workshop. Bulletin 5.
Glossary
Technical terms used in this guide.
- MIL
- Malfunction indicator lamp — the engine warning light on the dashboard
- ECM
- Engine control module — the electronic unit that manages the engine
- VIN
- Vehicle identification number — 17 characters, found at the base of the windscreen and on the V5C logbook
- EGR
- Exhaust gas recirculation — feeds some exhaust gas back into the intake to cut emissions
- Trouble Codes
- Standardised fault codes stored by the engine control module, read with a diagnostic tool
- AC
- Air conditioning — the system that cools the cabin
- MAF
- Mass air flow — a sensor that measures how much air the engine is breathing
- TC
- Turbocharger — the exhaust-driven compressor that boosts engine power
- Actuator
- A motor or solenoid that moves a mechanical part on command
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- EGR Valve
- The valve that meters exhaust gas back into the intake
- Intake Manifold
- The housing that distributes air into the cylinders
- Multi-Plug
- A multi-pin electrical connector on a wiring harness
- Multi-Plugs
- Multi-pin electrical connectors on a wiring harness
- Receiver/Drier
- The air-conditioning filter/dryer that removes moisture from the refrigerant
- Re-Program
- Update the software on a control module using the manufacturer's diagnostic tool
- Wiring Harness
- The bundled cables that carry power and signals around the vehicle
- Recirculation
- Air-conditioning mode that recirculates cabin air instead of drawing in outside air
Frequently asked questions
What are the common faults with the Alfa Romeo Brera 2.4 JTDM 20V?
This guide contains 12 workshop bulletins for the Alfa Romeo Brera 2.4 JTDM 20V. Of these, four concern the engine and fuel system and four the electrical and ignition. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Alfa Romeo Brera 2.4 JTDM 20V have these faults?
No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.
Can I check for Alfa Romeo Brera 2.4 JTDM 20V faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.